um,some places of work do not allow any staff to receive any gifts from relatives,token or otherwise,however,if this is not the case then i dont see why you shouldnt go ahead and give a very small(monetarily speaking) gift,if others are jealous then tough!every patient/member of staff do have carers/clients they really gel with and its nice to think your mother did.i have in the past received little gifts(hankies!chocs,most extravegant a £5 book token from a patient who shared my love of reading)i would never accept anything of value or money,and same goes for collegues.my condolences to you on the loss of your mother.